DAC7632

15

SBAS234

www.ti.com

FIGURE 6. Single-Supply Buffered Reference with a Reference Low of 50mV.

V

V

V

V

V

V

V

V

32

31

30

29

28

27

26

25

DAC7632

1000pF

V

OUT

V

OUT

100

Ω

+2.5V

2k

Ω

98k

Ω

+0.050V

+V

+V

OPA2350

2200pF

1000pF

2200pF

100

Ω

FIGURE 7. Integral Linearity and Differential Linearity Error

Characteristic Curves for Figure 6.

FIGURE 8. Integral Linearity and Differential Linearity Error

Characteristic Curves for Figure 9.

V

V

V

V

V

V

V

V

32

31

30

29

28

27

26

25

DAC7632

1000pF

V

OUT

V

OUT

100

Ω

+V

OPA2350

2200pF

1000pF

2200pF

+2.5V

+V

+V

+1.25V

100

Ω

2.0

1.5

1.0

0.5

0

–0.5

–1.0

–1.5

–2.0

2.0

1.5

1.0

0.5

0

–0.5

–1.0

–1.5

–2.0

LINEARITY ERROR AND

DIFFERENTIAL LINEARITY ERROR vs CODE

(DAC A, +25

°C)

0000

H

2000

H

4000

H

6000

H

8000

H

Digital Input Code

A000

E000

2.0

1.5

1.0

0.5

0

–0.5

–1.0

–1.5

–2.0

2.0

1.5

1.0

0.5

0

–0.5

–1.0

–1.5

–2.0

LINEARITY ERROR AND

DIFFERENTIAL LINEARITY ERROR vs CODE

(DAC A, +25

°C)

0000

H

2000

H

4000

H

6000

H

8000

H

Digital Input Code

A000

E000